Home / 18,536.99-27,931.97-15,322.10

Finding the Fourth Proportional to 18,536.99, 27,931.97 and 15,322.10

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Solution

The fourth proportional to 18,536.99, 27,931.97 and 15,322.10 is: 23,087.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,536.99 : 27,931.97 = 15,322.10 : x
  2. Step 2: Convert to fraction form
    18,536.99/27,931.97 = 15,322.10/x
  3. Step 3: Cross multiply
    18,536.99x = 27,931.97 × 15,322.10
  4. Step 4: Simplify right side
    18,536.99x = 427,976,437.54
  5. Step 5: Solve for x
    x = 427,976,437.54/18,536.99
  6. Step 6: Final answer
    x = 23,087.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.